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iC-LNB    18-Bit Optical Encoder with SPI and Serial/Parallel and FlexCount® Outputs - new

Applications
  • Optical position sensors
  • Linear scales
  • Absolute rotary encoders
  • Programmable incremental encoders
  • Motor feedback systems
Features
  • System-on-chip design for excellent reliability
  • Very compact array size
  • Leading/trailing sampling of 10 binary tracks pitched at 400 μm
  • Analog sine/cosine scanning with enlarged photodiodes and signal conditioning
  • Differential sine/cosine outputs with 1024 CPR and 500 mVpk
  • Absolute resolution of up to 18 bits by fast 8-bit vector-tracking interpolation
  • Unique FlexCount® circuit: freely selectable resolution for absolute and incremental data
  • Incremental quadrature outputs with 1 to 16,384 CPR and programmable index signal
  • Scalable shift-register for 12 to 18 bits and 1 μs cycles at 16 MHz clock frequency
  • Parallel data output of 16 bits in Gray code
  • Permanent RAM monitoring by parity bits
  • LED illumination control (mean or sin/cos square) by 50 mA high-side current source
  • Alarm indication for configuration and illumination error (end of life)
  • Undervoltage detection
  • 3.3 V-compatible SPI and I/O ports for configuration and data
  • 4 V to 5.5 V single supply operation
  • Operating temperature range of –40 °C to 110 °C
  • Small outline, 30-pin optoBGA package for SMT
  • Available accessories: LED lamp and code discs (1024 CPR)
Packages
    38-pin optoQFN
    LNB2C
Block Diagram
 
Product Overview
Application Guide
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